We'll search for every combination of “Cohan” and your other names.
*COH
CO*ANN
C*HHN
CO*HHN
C*AAN
CC*HAN
CO*AAN
C*HNN
CO*HNN
CO*HAN
CC*OHN
CC*ANN
CC*AAN
CC*NNN
CO*NNN
C*OHN
CH*AAN
C*ANN
CH*ANN
CH*NNN
CO*OHN